I have a service running, and would like to send a notification. Too bad, the notification object requires a Context, like an Activity, and not a Service.Notifications provide short, timely information about events in your app while it isn't in use. Your AI development companion for Android development. In this tutorial, we will learn how to launch a local notification in Android, request the necessary permission. Notification manager object is used to create the channel and notify the user. When your app is in the background, Android directs notification messages to the system tray. Now we will move on to the Main activity where we will fill out a small form and with a button we will launch the notification. I could well imagine some Google service doing the "real job", and the app simply registering a "receiver". I do have message field filled in.